DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   Transport Driver Interface
   TDI
      <networking> (TDI) Developed by SUN, IBM, and Microsoft
      (and others?), the TDI is a software interface between the
      protocols and application programing interface layers of
      the Windows NT network model.
      (1997-11-05)